Node icon in a jsTree tree with font-awesome

Question

I have a tree structure using jsTree, like this:

<div id="jstree">
        <ul>
           <li>Root 1
             <li> Child 1</li>  
           </li>   
        </ul>
</div>

I would like to put icons of font-awesome for the roots and children. Here is explained how to do it with bootstrap, below and example:

 <li data-jstree='{"icon":"glyphicon glyphicon-leaf"}'>Child</li>

I tried by doing this:

<li data-jstree='{"icon":"fa fa-user fa-2x"}'>

and this is the error that the browser tells me:

Invalid character (:) in expression "icon":"fa fa-user fa-2x"

I should also mention that I am using XML and XSL.

Does anyone have an idea about this issue?

Answer 1

If you have <li data-jstree='{"icon":"fa fa-user fa-2x"}'> literally in XSLT code then I think you want <li data-jstree='{{"icon":"fa fa-user fa-2x"}}'> instead to prevent the XSLT engine from processing the attribute value as an attribute value template.

Answer 2

You can use the following design:

<div id="jstree">
<ul>
  <li data-jstree='{"opened":true,"icon":"fa fa-folder-open"}'>Accounts
    <ul>
      <li data-jstree='{"icon":"fa fa-folder"}'>Account 1
      <ul>
        <li data-jstree='{"icon":"fa fa-file"}'>File 1</li> 
        <li data-jstree='{"icon":"fa fa-file"}'>File 2</li> 
      </ul>
      </li>
      <li data-jstree='{"icon":"fa fa-folder"}'>Account 2
      <ul>
        <li data-jstree='{"icon":"fa fa-file"}'>File 1</li> 
        <li data-jstree='{"icon":"fa fa-file"}'>File 2</li> 
      </ul>
      </li>
    </ul>
  </li>
</ul>
</div>

And you change how it looks once the folder is opened or closed:

// bind customize icon change function in jsTree open_node event. 
$('#jstree').on('open_node.jstree', function(e, data){
    var icon = $('#' + data.node.id).find('i.jstree-icon.jstree-themeicon').first();
    icon.removeClass('fa-folder').addClass('fa-folder-open');
});

// bind customize icon change function in jsTree close_node event. 
$('#jstree').on('close_node.jstree', function(e, data){
    var icon = $('#' + data.node.id).find('i.jstree-icon.jstree-themeicon').first();
    icon.removeClass('fa-folder-open').addClass('fa-folder');
});